<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<title>Source code</title>
<link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style">
</head>
<body>
<div class="sourceContainer">
<pre><span class="sourceLineNo">001</span>package com.palamida.util.collect;<a name="line.1"></a>
<span class="sourceLineNo">002</span><a name="line.2"></a>
<span class="sourceLineNo">003</span>import static com.google.common.base.Preconditions.checkNotNull;<a name="line.3"></a>
<span class="sourceLineNo">004</span><a name="line.4"></a>
<span class="sourceLineNo">005</span>import java.util.Collections;<a name="line.5"></a>
<span class="sourceLineNo">006</span>import java.util.LinkedList;<a name="line.6"></a>
<span class="sourceLineNo">007</span>import java.util.List;<a name="line.7"></a>
<span class="sourceLineNo">008</span>import java.util.ListIterator;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import com.google.common.base.Predicate;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import com.google.common.collect.Lists;<a name="line.11"></a>
<span class="sourceLineNo">012</span><a name="line.12"></a>
<span class="sourceLineNo">013</span>/**<a name="line.13"></a>
<span class="sourceLineNo">014</span> * Static utility methods which operate on or return {@link List}s.<a name="line.14"></a>
<span class="sourceLineNo">015</span> * <a name="line.15"></a>
<span class="sourceLineNo">016</span> * @author Zhenya Leonov<a name="line.16"></a>
<span class="sourceLineNo">017</span> * @see Lists<a name="line.17"></a>
<span class="sourceLineNo">018</span> */<a name="line.18"></a>
<span class="sourceLineNo">019</span>public class MoreLists {<a name="line.19"></a>
<span class="sourceLineNo">020</span><a name="line.20"></a>
<span class="sourceLineNo">021</span>        private MoreLists() {<a name="line.21"></a>
<span class="sourceLineNo">022</span>        }<a name="line.22"></a>
<span class="sourceLineNo">023</span><a name="line.23"></a>
<span class="sourceLineNo">024</span>        /**<a name="line.24"></a>
<span class="sourceLineNo">025</span>         * Creates a {@code LinkedList} containing the specified initial elements.<a name="line.25"></a>
<span class="sourceLineNo">026</span>         * <a name="line.26"></a>
<span class="sourceLineNo">027</span>         * @param first<a name="line.27"></a>
<span class="sourceLineNo">028</span>         *            the first element<a name="line.28"></a>
<span class="sourceLineNo">029</span>         * @param rest<a name="line.29"></a>
<span class="sourceLineNo">030</span>         *            an array of additional elements, possibly empty<a name="line.30"></a>
<span class="sourceLineNo">031</span>         * @return a {@code LinkedList} containing the specified initial elements<a name="line.31"></a>
<span class="sourceLineNo">032</span>         */<a name="line.32"></a>
<span class="sourceLineNo">033</span>        public static &lt;E&gt; LinkedList&lt;E&gt; newLinkedList(final E first,<a name="line.33"></a>
<span class="sourceLineNo">034</span>                        final E... rest) {<a name="line.34"></a>
<span class="sourceLineNo">035</span>                checkNotNull(first);<a name="line.35"></a>
<span class="sourceLineNo">036</span>                checkNotNull(rest);<a name="line.36"></a>
<span class="sourceLineNo">037</span>                final LinkedList&lt;E&gt; linkedList = Lists.newLinkedList();<a name="line.37"></a>
<span class="sourceLineNo">038</span>                linkedList.add(first);<a name="line.38"></a>
<span class="sourceLineNo">039</span>                Collections.addAll(linkedList, rest);<a name="line.39"></a>
<span class="sourceLineNo">040</span>                return linkedList;<a name="line.40"></a>
<span class="sourceLineNo">041</span>        }<a name="line.41"></a>
<span class="sourceLineNo">042</span><a name="line.42"></a>
<span class="sourceLineNo">043</span>        /**<a name="line.43"></a>
<span class="sourceLineNo">044</span>         * Returns the index of the first occurrence in the specified list of an<a name="line.44"></a>
<span class="sourceLineNo">045</span>         * element which satisfies the given predicate, or -1 if there is no such<a name="line.45"></a>
<span class="sourceLineNo">046</span>         * element.<a name="line.46"></a>
<span class="sourceLineNo">047</span>         * &lt;p&gt;<a name="line.47"></a>
<span class="sourceLineNo">048</span>         * Note: If the specified list allows {@code null} elements the given<a name="line.48"></a>
<span class="sourceLineNo">049</span>         * predicate must be able to handle {@code null} elements as well to avoid a<a name="line.49"></a>
<span class="sourceLineNo">050</span>         * {@code NullPointerException}.<a name="line.50"></a>
<span class="sourceLineNo">051</span>         * <a name="line.51"></a>
<span class="sourceLineNo">052</span>         * @param list<a name="line.52"></a>
<span class="sourceLineNo">053</span>         *            the specified list<a name="line.53"></a>
<span class="sourceLineNo">054</span>         * @param predicate<a name="line.54"></a>
<span class="sourceLineNo">055</span>         *            the given predicate<a name="line.55"></a>
<span class="sourceLineNo">056</span>         * @return the index of the first occurrence in the specified list of an<a name="line.56"></a>
<span class="sourceLineNo">057</span>         *         element which satisfies the given predicate, or -1 if there is no<a name="line.57"></a>
<span class="sourceLineNo">058</span>         *         such element<a name="line.58"></a>
<span class="sourceLineNo">059</span>         */<a name="line.59"></a>
<span class="sourceLineNo">060</span>        public static &lt;E&gt; int indexOf(List&lt;E&gt; list, Predicate&lt;? super E&gt; predicate) {<a name="line.60"></a>
<span class="sourceLineNo">061</span>                checkNotNull(list);<a name="line.61"></a>
<span class="sourceLineNo">062</span>                checkNotNull(predicate);<a name="line.62"></a>
<span class="sourceLineNo">063</span>                final ListIterator&lt;E&gt; e = list.listIterator();<a name="line.63"></a>
<span class="sourceLineNo">064</span>                while (e.hasNext())<a name="line.64"></a>
<span class="sourceLineNo">065</span>                        if (predicate.apply(e.next()))<a name="line.65"></a>
<span class="sourceLineNo">066</span>                                return e.previousIndex();<a name="line.66"></a>
<span class="sourceLineNo">067</span>                return -1;<a name="line.67"></a>
<span class="sourceLineNo">068</span>        }<a name="line.68"></a>
<span class="sourceLineNo">069</span><a name="line.69"></a>
<span class="sourceLineNo">070</span>        /**<a name="line.70"></a>
<span class="sourceLineNo">071</span>         * Returns the index of the last occurrence in the specified list of an<a name="line.71"></a>
<span class="sourceLineNo">072</span>         * element which satisfies the given predicate, or -1 if there is no such<a name="line.72"></a>
<span class="sourceLineNo">073</span>         * element.<a name="line.73"></a>
<span class="sourceLineNo">074</span>         * &lt;p&gt;<a name="line.74"></a>
<span class="sourceLineNo">075</span>         * Note: If the specified list allows {@code null} elements the given<a name="line.75"></a>
<span class="sourceLineNo">076</span>         * predicate must be able to handle {@code null} elements as well to avoid a<a name="line.76"></a>
<span class="sourceLineNo">077</span>         * {@code NullPointerException}.<a name="line.77"></a>
<span class="sourceLineNo">078</span>         * <a name="line.78"></a>
<span class="sourceLineNo">079</span>         * @param list<a name="line.79"></a>
<span class="sourceLineNo">080</span>         *            the specified list<a name="line.80"></a>
<span class="sourceLineNo">081</span>         * @param predicate<a name="line.81"></a>
<span class="sourceLineNo">082</span>         *            the given predicate<a name="line.82"></a>
<span class="sourceLineNo">083</span>         * @return the index of the last occurrence in the specified list of an<a name="line.83"></a>
<span class="sourceLineNo">084</span>         *         element which satisfies the given predicate, or -1 if there is no<a name="line.84"></a>
<span class="sourceLineNo">085</span>         *         such element<a name="line.85"></a>
<span class="sourceLineNo">086</span>         */<a name="line.86"></a>
<span class="sourceLineNo">087</span>        public static &lt;E&gt; int lastIndexOf(List&lt;E&gt; list,<a name="line.87"></a>
<span class="sourceLineNo">088</span>                        Predicate&lt;? super E&gt; predicate) {<a name="line.88"></a>
<span class="sourceLineNo">089</span>                checkNotNull(list);<a name="line.89"></a>
<span class="sourceLineNo">090</span>                checkNotNull(predicate);<a name="line.90"></a>
<span class="sourceLineNo">091</span>                final ListIterator&lt;E&gt; e = list.listIterator(list.size());<a name="line.91"></a>
<span class="sourceLineNo">092</span>                while (e.hasPrevious())<a name="line.92"></a>
<span class="sourceLineNo">093</span>                        if (predicate.apply(e.next()))<a name="line.93"></a>
<span class="sourceLineNo">094</span>                                return e.previousIndex();<a name="line.94"></a>
<span class="sourceLineNo">095</span>                return -1;<a name="line.95"></a>
<span class="sourceLineNo">096</span>        }<a name="line.96"></a>
<span class="sourceLineNo">097</span><a name="line.97"></a>
<span class="sourceLineNo">098</span>}<a name="line.98"></a>




























































</pre>
</div>
</body>
</html>
